AB1789-HPR 30 SECONDS CHAIR STAND TEST - FEASIBLE AS SELF-ASSESSMENT TEST FOR KNEE OSTEOARTHRITIS?
Authors: C. M. Ho-Henriksson, C. A. Thorstensson, L. Nordeman
Journal: Annals of the Rheumatic Diseases (2023)

<h3>Background</h3> A reliable self-assessment test to evaluate physical performance could be useful for patients with knee osteoarthritis to monitor physical function over time. However, studies comparing a self-assessment test with standardized testing in the clinic supervised by a physiotherapist is lacking. The 30 seconds chair stand test is part of a test battery which is recommended both in research and in clinical settings for patients with osteoarthritis [1]. The chair stand test is a reliable physical performance test for patients with knee osteoarthritis [2, 3]. <h3>Objectives</h3> The purpose is to evaluate the 30 seconds chair stands test as self-assessment test for patients with knee osteoarthritis and when it is supervised by a physiotherapist. <h3>Methods</h3> A sample size of 147 patients with knee osteoarthritis will be recruited. Each patient will perform two self-assessment tests with two days in between. Another test supervised by physiotherapist will be conducted within a week after the second self-test. Demographic data, knee-related quality of life using knee injury and osteoarthritis score – short version (KOOS-PS) [3], pain duration, pain intensity using numeric rating scale (NRS) 0-10 [4]; pain sites, experienced intermittent and constant knee pain (ICOAP) [5], will be collected. Data collection is ongoing and preliminary data will be presented descriptively. <h3>Results</h3> So far, 91 patients have been recruited, whereas 60 patients (58% females) with a mean age of 69 years, and mean body mass index of 30 (SD 5) have been included in the preliminary analysis. Patients reported mean pain duration of 46 months (SD 52), rating mean pain intensity 3/10 (SD 2), and 83% had pain in more than one joint. Patients reported mild to moderate pain (total mean ICOAP-score 44/100, SD 21). KOOS-PS score was 60/100 (SD 14) showing moderate difficulties in knee-related daily activities. Mean number of chair stands for self-assessment tests 1 and 2 were 13.7 (SD 5.6) and 14.7 (SD 6.0) respectively and mean number supervised by physiotherapists were 13.3 (SD 4.8). <h3>Conclusion</h3> Preliminary results of this study indicate that 30 seconds chair stand test as self-assessment test might be an option for patients with knee osteoarthritis to monitor their own physical performance. Yet, to ensure the agreement between self-assessment and physiotherapist assessment, a reliability study is needed. <h3>References</h3> [1]Dobson F, Hinman RS, Roos EM, Abbott JH, Stratford P, Davis AM, et al. OARSI recommended performance-based tests to assess physical function in people diagnosed with hip or knee osteoarthritis. Osteoarthritis and cartilage. 2013;21(8):1042-52. [2]Gill SD, McBurney H. Reliability of performance-based measures in people awaiting joint replacement surgery of the hip or knee. Physiother Res Int. 2008;13(3):141-52. [3]Gill S, Hely R, Page RS, Hely A, Harrison B, Landers S. Thirty second chair stand test: Test-retest reliability, agreement and minimum detectable change in people with early-stage knee osteoarthritis. Physiother Res Int. 2022;27(3):e1957. [4]Perruccio AV, Stefan Lohmander L, Canizares M, Tennant A, Hawker GA, Conaghan PG, et al. The development of a short measure of physical function for knee OA KOOS-Physical Function Shortform (KOOS-PS) - an OARSI/OMERACT initiative. Osteoarthritis and cartilage. 16. England2008. p. 542-50. [5]Downie WW, Leatham PA, Rhind VM, Wright V, Branco JA, Anderson JA. Studies with pain rating scales. Annals of the rheumatic diseases. 1978;37(4):378-81. [6]Hawker GA, Davis AM, French MR, Cibere J, Jordan JM, March L, et al. Development and preliminary psychometric testing of a new OA pain measure--an OARSI/OMERACT initiative. Osteoarthritis and cartilage. 2008;16(4):409-14. <h3>Acknowledgements:</h3> NIL. <h3>Disclosure of Interests</h3> None Declared.